$169+ Cheap flights from Kailua-Kona to Ontario (KOA - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
KOA — ONT
Nov 19 — Nov 261
Round-trip
1 adult, Economy
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Find cheap flights from Kailua-Kona to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Kailua-Kona to Ontario
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Cheapest flights from Kailua-Kona to OntarioExplore the most affordable flight options available from Kailua-Kona to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
Explore the most affordable flight options available from Kailua-Kona to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2026.
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:40 am -
1 stop9h 05m
Thu 12/35:45 am -
1 stop10h 15m
Deal found 10/19![Southwest logo]()
$392
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:40 am -
1 stop8h 30m
Thu 12/35:45 am -
1 stop10h 15m
Deal found 10/19![Southwest logo]()
$398
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:00 am -
2 stops9h 55m
Fri 12/49:00 am -
1 stop11h 10m
Deal found 10/19![Southwest logo]()
$415
This American Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:09 pm -
1 stop8h 26m
Wed 12/29:35 am -
1 stop31h 27m
Deal found 10/19![American Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:00 am -
1 stop12h 10m
Wed 11/255:20 am -
1 stop9h 35m
Deal found 10/18![Southwest logo]()
$429
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:00 am -
1 stop12h 10m
Mon 12/79:00 am -
1 stop11h 10m
Deal found 10/15![Southwest logo]()
$441
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:45 pm -
1 stop11h 32m
Wed 12/26:00 am -
2 stops15h 55m
Deal found 10/19![Delta logo]()
$454
Best flights from Kailua-Kona to OntarioDiscover carefully curated flight deals from Kailua-Kona to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
Discover carefully curated flight deals from Kailua-Kona to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2026.
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/109:00 am -
1 stop9h 20m
Mon 2/2210:45 am -
2 stops12h 40m
Deal found 10/19![Southwest logo]()
$439
This Alaska Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
1 stop14h 43m
Thu 11/129:55 am -
1 stop7h 48m
Deal found 10/20![Multiple Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/510:45 pm -
1 stop13h 12m
Wed 1/277:00 am -
1 stop13h 54m
Deal found 10/19![Delta logo]()
$482
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:00 am -
1 stop12h 10m
Mon 12/79:00 am -
1 stop11h 10m
Deal found 10/15![Southwest logo]()
$441
This Delta deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:40 pm -
2 stops16h 42m
Mon 12/146:00 am -
1 stop10h 55m
Deal found 10/20![Delta logo]()
$497
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:00 am -
2 stops9h 55m
Fri 12/410:25 am -
2 stops13h 00m
Deal found 10/19![Southwest logo]()
$494
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/310:45 pm -
2 stops15h 27m
Mon 2/86:00 am -
1 stop11h 00m
Deal found 10/19![Delta logo]()
$516
This Delta deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:45 pm -
1 stop11h 32m
Sun 11/227:00 am -
1 stop14h 25m
Deal found 10/18![Delta logo]()
$520
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2910:45 pm -
1 stop13h 12m
Mon 2/86:00 am -
1 stop11h 00m
Deal found 10/19![Delta logo]()
$520
Last-minute flights from Kailua-Kona to OntarioDiscover last-minute flight deals from Kailua-Kona to Ontario. Data last updated October 20, 2026 and is based on user searches.
Discover last-minute flight deals from Kailua-Kona to Ontario. Data last updated October 20, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:20 am -
1 stop9h 23m
Mon 11/169:55 am -
1 stop7h 48m
Deal found 10/19![Multiple Airlines logo]()
$467
This Southwest deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:00 am -
1 stop12h 10m
Wed 11/255:20 am -
1 stop9h 35m
Deal found 10/18![Southwest logo]()
$429
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:45 pm -
1 stop11h 32m
Sun 11/227:00 am -
1 stop14h 25m
Deal found 10/19![Delta logo]()
$464
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:40 am -
1 stop8h 30m
Thu 12/35:45 am -
1 stop10h 15m
Deal found 10/19![Southwest logo]()
$398
This American Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:09 pm -
1 stop8h 26m
Wed 12/29:35 am -
1 stop31h 27m
Deal found 10/19![American Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:45 pm -
1 stop11h 32m
Wed 12/26:00 am -
2 stops15h 55m
Deal found 10/19![Delta logo]()
$454
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:40 am -
1 stop9h 05m
Thu 12/35:45 am -
1 stop10h 15m
Deal found 10/19![Southwest logo]()
$392
This Southwest deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:00 am -
2 stops9h 55m
Fri 12/49:00 am -
1 stop11h 10m
Deal found 10/19![Southwest logo]()
$415
One-way flights from Kailua-Kona to OntarioSearch for one-way flight options from Kailua-Kona to Ontario. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
Search for one-way flight options from Kailua-Kona to Ontario. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
This Priceline deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:30 am -
1 stop11h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$169
This Priceline deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2211:29 pm -
1 stop9h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Alaska Airlines logo]()
$173
This Alaska Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:45 pm -
1 stop22h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$175
This Priceline deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
1 stop14h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Multiple Airlines logo]()
$251
This Priceline deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1710:55 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Alaska Airlines logo]()
$255
This Alaska Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/67:15 pm -
1 stop24h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$257
This Priceline deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/157:30 am -
1 stop11h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Multiple Airlines logo]()
$261
This American Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/610:21 pm -
1 stop8h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![American Airlines logo]()
$265
This Booking.com deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2212:58 pm -
2 stops19h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$267
This Mytrip deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:55 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Alaska Airlines logo]()
$270
This Delta deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:40 pm -
1 stop11h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Delta logo]()
$275
Find flight deals from Kailua-Kona to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Kailua-Kona (KOA) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $342 (Alaska Airlines) |
One-way from | $169 (Priceline) |
Popular in | October |
Cheapest in | January |
Average price | $522 |
Cheapflights Fare Finder
Customize your flight search to find flights from Kailua-Kona to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 20, 2026.
Use the filters below to find and compare flights from Kailua-Kona to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Mon 12/7
11:20 am-9:25 pm
1 stop8h 05m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$251
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Sun 12/6
7:15 pm-9:25 pm
1 stop24h 10m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$257
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Tue 1/19
11:29 pm-10:38 am
1 stop9h 09m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$265
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Sat 11/14
11:40 am-10:10 pm
1 stop8h 30m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$271
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Tue 1/5
10:45 pm-1:57 pm
1 stop13h 12m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$282
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Mon 2/15
10:45 pm-1:57 pm
1 stop13h 12m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$295
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Sat 2/13
6:31 pm-9:28 pm
1 stop24h 57m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$295
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Sun 11/1
8:45 pm-10:43 pm
1 stop23h 58m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$297
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Sat 1/16
10:45 pm-1:57 pm
1 stop13h 12m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$302
Kailua-KonaOntario
KOA Kona Intl - ONT Ontario
KOAONT
Kona Intl
Sat 11/14
9:45 pm-11:17 am
1 stop11h 32m
Ontario
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$302
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Kailua-Kona to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kailua-Kona to Ontario in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Kailua-Kona-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kailua-Kona-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kailua-Kona-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Kailua-Kona-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kailua-Kona-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Kailua-Kona to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Kailua-Kona with our price prediction graph.
KOA-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Kailua-Kona to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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